Here's a train journos should get on, m'thinks, because of its long-term value, implications and potential for synergy.

http://openstreetmap.org/ — OpenStreetMap is a free editable map of the whole world. It is made by people like you. OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth. OpenStreetMap's hosting is kindly supported by the UCL VR Centre and bytemark.
— tj